Ok, let me get this straight...Little Sammy Brownback and his chums what to chip away that church-state wall with this, but they also want to encourage "legislation designed to help create a democratic, secular government in Iran" with this.
Brownback has a history of consorting with Dominionists. He was the recipient of the Distinguished Christian Statesman of the Year Award in 2000 from the D. James Kennedy Center for Christian Statesmanship. Kennedy, you may recall, was one of the original signers of the Coalition on Revival's Manifesto, which had all sorts of good ideas for implementing theocracy in the U.S.
So, I guess from Brownback and Co.'s POV, theocracy is ok, as long as your theo ain't coming from the Mullahs.